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Finding the Fourth Proportional to 66,772.98, 100,090.25 and 41,755.61

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Solution

The fourth proportional to 66,772.98, 100,090.25 and 41,755.61 is: 62,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,772.98 : 100,090.25 = 41,755.61 : x
  2. Step 2: Convert to fraction form
    66,772.98/100,090.25 = 41,755.61/x
  3. Step 3: Cross multiply
    66,772.98x = 100,090.25 × 41,755.61
  4. Step 4: Simplify right side
    66,772.98x = 4,179,329,443.80
  5. Step 5: Solve for x
    x = 4,179,329,443.80/66,772.98
  6. Step 6: Final answer
    x = 62,590.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.